Water-soluble shaving aid for razor blades

Abstract

A solid water-soluble lubricating shaving aid is provided as an adherent coating on a razor blade. The solid coating contains polyethylene oxide as a lubricant.

I claim: 
     
       1. A razor blade having an adherent solid, water-soluble coating comprising polyethylene oxide. 
     
     
       2. The coated razor blade of claim 1 wherein said coating further comprises an additional high molecular weight surface-active agent. 
     
     
       3. A razor blade in accordance with claim 2 wherein said additional surface-active agent is represented by the expression:   ARB     wherein:   A is poly(oxypropylene) of MW≧2500; and   B is poly(oxyethylene) of MW≧400.   
     
     
       4. A razor blade in accordance with claim 1, wherein said coating additionally comprises an adhesion-promoter. 
     
     
       5. A razor blade in accordance with claim 4 wherein adhesion-promoter is hydantoinformaldehyde. 
     
     
       6. The coated razor blade of claim 1 wherein said coating of polyethylene oxide overlies a coating of polytetrafluoroethylene. 
     
     
       7. The coated razor blade of claim 6 wherein said coating of polyethylene oxide further comprises an additional high molecular weight surface-active agent and an adhesion-promoter.